Tire-builder&#39;s tool.



- j thesaid rolled up tread: to a third man, vWho unrolled it onto the book, while a I earns on.

. WILLIAM THOMPSON,v or DETROIT, MICHIGAN, AssIGNOR To MORGAN a. WRIGHT, A

'- CORPORATION or MICHIGAN.

TIRE BUIIrDER's' TOOL.

madam. y

To @ZZ-whom t may concern: K Bet known that I, WILLIAM THOMPSON, a citizen of the United States, residing at Detroit,l county of Wayne, andv State of y Michigan, have invented certain new and useful Improvements 'in Tire- Builders Tools, of which the following is a full, clear, and exact description. y

This invention relates to Vtire builders tools and has for an object to provide a de'- vice for promoting the quick and easy transfer ,of unvulcanized -rubber treads from the forming calender to the books with minimum manual labor.

In the manufacture of tires, the tread portion is formed separately from the carcass portion,l and is. usually vformed by passing raw or unvulcanized rubber stock through a calender, the delivery roll of which is engraved to give the tread somewhat the form which it will have in the product. The tread is discharged from the calender in theform of' a strip from eight to ten`inches wide, and about-eight feet long and is conducted fromtlhe calender-"by an vendless conveyer. 'Usuallyitkwa-srequired'that one man stand at'the center of the conveyor and cut the tread.- A second man stood at the end of the' 'apron and held the shell upon which the tread 'was rolled. This man handed fourth manrolled up the liner strip.

The present invention provides a device whereby the services of two of the unskilled laborers above referred to are dispensed with, viz., the man who rolled up the liner and the man who held the shell at the end of the apron, and the treads vare removed from the conveyer and placed in the book, at the same time being prevented from sticking together.

With the above objects in view the invention consists in novel details of construc-A tion and combinations of parts hereinafter vfully described and claimed, it being understood that various modiiicatiOns-may be vresorted to within the scope of the appended.

'claims without sacrificing any of the advantages Or departing fromjthe' spirit ofthe invention.

The invention can be readilyunderstood from the following description taken in con- ISpecication of Letters Patent.

over said tread'while lying flat.

Patented .rune 2e, rela.

Application filed August 27, 1915; 'SerialrNm 47,5948.

nection with the accompanying drawing, in

Figure 1 isa side elevation of the device; and

fFig. 2 is a plan view. Referring now to the drawing, the device 'is shown to comprise a roller 10 of relatively large diameter and a roller 11 of relatively -small diameter, these rollers being equal 1n; lengthand being connected in spaced relation by a link 12, the ends of.

which form shafts 13' and'14, upon which the rollers turn freely. Upon the 4small .roller 11 is spooled a liner strip 15 of muslin A tread, so that the tread winds itself spirally upon the large roller, each convolution of the treadlhaving over it a convolution of the liner strip which is unwound from the small roller 11 by the rotation of the large roller. rThe operator then transfers the tread to the book by rollingthe large roller 10 along the 4book so as-to unwind the tread on to the,book, and at the same time he spools the liner strip upon'the'small roller by allowing the small rollertofrictionally engage the surface of the tread'and be rotated thereby. Thus as the device moves along, the tread is vsimultaneously unrolled from the large roller 10 and'the liner. strip spooled upon the small roller 11 so that it is again ready for use.'

What I claim is:

1. A tire builders hand tool, comprising a suitable frame, rollers having parallel axes, rotatably'mounted thereon, one of said rollers being adapted-to have a 'liner strip' wound thereon, said strip being arranged to be supplied by rotation of theother roller, between the convolutions of a tread being wound thereon as the latter roller vis rolled 2. Atire `builders hand tool, comprising a suitableframegrollers having parallel axes, rotatably'mou'nted thereon, one of said rollers being `adapted to have a liner strip wound thereon'and lthe other being adapted tohave a superposed tread strip and liner wound thereorby being rolled-.over the former while lying flat, said rollers beingA relatively so positioned that said liner strip Will constitute the intermediate element for transmitting rotary motion from one roll to 5 the other.

3. A tire builders tool comprising in combination a roller for haiving Wound thereupon an unvulcanized tread, a second roller,`

a liner strip on the second named roller arranged to be 'supplied by rotation of' the rst named roller, between the convolutions of said tread, and meansv connecting both rollers in permanent spaced relation for sil'nultaneous independent rotation. Y

Signed at Detroit, Mich., July 29th, 1915.

. WILLIAM THOMPSON. 

